Traction agricultural machine.



C. F. & E. G. DAVIS.

TRACTION AGRICULTURAL MACHINE. APPLICATION FILED mAvs, m3.

1, 179,902. Patented Apr. 18, 1916.

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C. F. & E. G. DAVIS.

TRACTION AGRICULTURAL MACHINE.

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APPLICATION HLED MAY 3, 1913. 1,179,902. Patented Apr. 18, 1916 6 SHEETS-SHEET 4.

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C. F. & E. G. DAVIS. TRACTION AGRICULTURAL MACHINE.

APPLICATION FILED MAY 3. I9I3.

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c. F. & m. D'AVI'S. TRACTION AGRICULTURAL MACHINE.

Patented Apr. 18, 1916.

I I APPLICATION FILED MAY3. 191a. 1 179302.

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W t macaw j rarnnr o GHAUNOEY DAVIS AND EARL G. DAVIS, 0F NEAR FAiIRVI EW, OKLAHOIVIA. I

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7 Application filed May 3, 1913.

To all whom it may concern;

Be it known that we, CHAUNCEY F. DAVIS and EARL G. Davis, citizens of the United States, residing near Fairview, in the countyv of lllajor and State of Oklahoma, have invented certain new and useful Improvements in Traction Agricultural Machines, of which. the following is a specification, reference being had to the accompanying drawings. This invention relates to traction vehicles and. has foran object to provide a device of this character which will effectively operate under all conditions of service, and in which every part and its function will be so simple that inexperiencedpersons may readily understand and operate the machine,

A. further object is to produce a tract-ion vehicle which may be equipped with a header, or push binder, and ,will perform all turns that the ordinary horse power machine is called upon to perform 2'. 6'. will turn either to the rightor left when going forward, may be reversed either on one or both drive wheels without stopping the motor, and will turn a square corner in either direction in minimum time. I v

A. further object is to provide a machine of this character which when used as a header, will cut all the grain uniformly because of novel means which we have provided for maintaining the uniform and constant motion of the cutting knife and reel regardless of the direction in which the machine is traveling.

A. further object is to provide a machine of this character having novel means for actuating the reel, the cutting knives, and the canvas apron from a single drive shaft, whereby the above named parts are con stantly driven at a uniform speed and thus skipping of the grain is positively prevented.

lVith the above objects in view the invention consists of certain novel details of construction and combination of parts hereinafter fully described and claimed. it being understood that various modifications may be made in the minor details of construction within the scope of the appended claim.

In the accompanying drawings illustrating this invention :-Figure 1 is a plan view of the machine equipped with'header mech- Speeification of Letters Patent.

Serial No. 765,363.

anisin. F 2 is a longitudinal sectional view on the line 2*2 Fig. 1 with parts removed. Fig. 3 is a cross sectional view on the line 33 Fig. 1. Fig. 4; is a cross sectional view on the line 44 Fig. 1. Fig. 5 is a longitudinal sectional view on the line 5 5 Fig. 1. Fig. 6 is a longitudinal sectional view onthe line 66 Fig. 1. Fig. 7 is a longitudinal sectional view on the line 77 Fig. 1. Fig. 8 is a longitudinal sectional view on the line 88 Fig. 1. Fig. 9 is a fragmentary side elevation showing the 'rear portion of the main frame and rear truck with the near ground wheel removed. Fig. 10 is a rear elevation of the parts shown in Fig. 9 with parts removed. Fig. 11 is a detail view showing the turn table clutch pinion. Fig. '12 is a cross sectional view on the line 1212 Fig. 11. Fig. 13 is a detail view showing the elevator drive mechanism. Fig. 14 IS. a cross sectional view on the line 14-14: Fig. 1. Fig. 15 is a cross sectional ]Patented Apr. 18, 1916.

Attached to this axle by suitable after more fully described, is a main frame A which extends around in rear from the connection a to the connection 5 and supports at the rear end the steering truck, a

description of which latter will be deferred until later.

The drive wheels 1 and 2 are equipped respectively with cog rims 6 and 7. Meshing with these cog rims are drive pinions 8 and 9 that are carried upon and driven by respective transverse shafts 10 and 11. These shafts are driven respectively by clutch gears 12, 13, and 14, 15 which clutch gears constitute the reverse gear of the machine. Clutch gears 13 and 14. are driven in the same direction and are used to drive the machine forwardly, while clutch gears 12 and 15 run in an opposite direction and are used to reverse the machine. The: e gears are fitted ferential gear 28.

with the cup wheel 32.

2 I meatloawith double cone clutches 16 and 1? respectively which may be shifted from one to the other by lever arms 18 and 19, all of which mechanism will be' later described in detail.

The clutch gears are driven by pinions 20, 21, 22, and 23, attached to suitable shafts 26 and 27 which shafts are driven by a dif- The reverse motion of clutch gears 12 and 15 is obtained by the .use of idle pinions 24- and 25 attached. to suitable'stub shafts as shown. As will be understood, in. order to obtain the independent movement of the drive wheels and preserve the tractor functions thereof, the two shafts 26 and.27-are connected by and driven independently by the differential gear 28. This differential gear is substantially similar to the usual type of diiferen tial gear with the exception that it is reinforced or stiffened as will be presently described, in order that one or the other of. the drive wheels may be reversed or stopped altogether in making a turn.

In Fig. 3, which shows a detail sectional view of the differential gear, 30 designates the main or largebevel gear which is driven directly from the motor M by-the pinion 29 shown in Fig. 1. On opposite sides of this gear are disposed cupped plate wheels 31 and 32 which oscillate on four pinions 33 and 34;: in the usual manner, thus effecting the desii'ed diiierential drive and equalizing the pull onboth drive wheels. The entire differential gear rests on the above 111611 tio ed shafts'26 and 27 which confront each other as shown at w. The shaft27 is keyed to a sleeve 39. (see Fig.3) which in turn as will hereinafter appear is mounted for rotation The shaft .26 is keyed tocup wheel 31 and extends through .the gear 30 and cup wheel 32 and projects loosely into the sleeve 39, thus allowing the usual free oscillation of the diiierential geaiz' But since, as above stated it is necessary at times to retard or stiffen the differential gear, we have designed a clutch device which may be thrown off or on at will. To attain th end a brake flange 37 is formed. or. sideof the rear Levers 38 are pivota y on and project through the 'l terminally equipped wi h bi l" e snees adapted to frictionally ei ie the brahte flange. The sleeve is equipped with radial arms 39 which are connected outer ends of the levers. The sleeve o herrncre abuts against a cam. sleeve equrppe" with an operating l wno has a cam face which bears within a \f-notch an abutment sleeve ll.

the oute ends cf the l be 51' cutwa' brake flange, thus retarding the action of the differential gear. When the lever is released the clutch is thrown oil by means of a coil spring" 42.

Fig. l shows an enlarged sectional view through one of the clutch gears. These main clutches are of the cone type and are arranged in pairs and operating in a manner which is believed to be self-evident; The main clutches 16- and l? identical in construction and therefore a detail description of but one, namely, of the clutch 16. will suiilce for both. The gears 12 and 13 have their confronting faces recessed as shown. The shaft 10 is provided with a square neck 43 in the nature of a sleeve which is keyed to the shaft between the gears 12 and 13, as best shown in Fig. 5. On this square sleeve is slidably fitted the common hub at of the cones a5 and as, the rims of which are machined to nicely fit in the respective recesses of the gears 12 and 13. A shifting collar l? made in two parts for ready removal and repair, is rcjvolubly fitted in a groove formed centrally and circumferentially on the hub ll, this sleeve being connected tothe above described shifting lever 18. As will be understood without further description, a single shift of the lever 18 in either direction throws one of the cones into engagement with the related gear and throws the other cone out of engagement with its related gear. whereby the drive "wheel 1 may be rotated forwardly or-rear- 'wardly as desired.

In Figs. 9 and 10 the rear truck and its mountings is shown. This true isso constructed that it can be turned in either di rection sufficiently to permit of the rear end of the machine swinging about on the front end of the machine as a pivot. To attain this end we employ a pair of ground wheels 4S of sufficiently small diameter to pass under the rear end of the frame A, these wheels being turnably 'mounted on spindles at the ends'of an axle 4.9 which is square in cross section. The axle is centrally pivoted between the branches of a forked king pin 50 by means of a pivot pin biwhereby the axle is capable of oscillating vertically on its pivot to permit of either ground wheel raising or dropping: to con-' *n hehca l spi i which depend from the main frame and are ment of the axle l9 bracket arms 60 depend from the bottom face ofthe turn table and carry hangers 61 which are provided. with vertical oblong slots or gnideways 62 which.

receive the square axle, contact of the lat ter with the ends of these slots serving to limit oscillatory movement of the axle.

Owing to the peculiar worlr. the turn table is called upon to perform it is necessary that it be turned at times by power and at other times by hand. For example, .vhen turning a square corner it is more expedient to turn it by power when traveling straightaway it is best to turn it by hand. The 'novel steering mechanism shown best in Fig. 9 makes this'power and hand operation possible.

instrumentality of a shaft 63 which a gear connection with the shart of the idle pinion 24, as shown in lli'g. l. lhe rear end 'of the shaft 68 is equipped with bevel gear 64L which meshes with and turns idly in opposite directions clutch gears 65 and 66 through which a shaft 67 extends ver tically, this shaft as well as the shaft 63 being journaled in suitable bearings carried by a bracket 68. On a square neck on the shaft 67 between the clutch gears 65 and 66 is mounted. for vertical sliding move ment a clutch pinion (ll) which formed with cone ends adapted to engage in corre sponding recesses in. the clutch gears as best shown in Fig. 11.. The clutch pinion meshes with a cog rim 70 formed on the turn table. It will. be apparent that when the clutch pinion is forced down into ongagement with the clutch gear 65 it is turned by the latter and turns the turn table in one direction, and that when the clutch pinion is raised and engaged with the gear 66 it is turned by this gear and turns the turn table in the opposite direction. Or the clutch pinion may, be held. midway between and be off of either of the clutch gears allowing them to turn idle.

The above described shifting ofthe clutch pinion (i9 is obtained by shoving forward or backward on a steering wheel. 71 which is carried by a steering shaft 72 that is connected to the shaft 67 by a hinge 73, there being an arm 74 carried by the steering shaft above the hinge which arm is pivotally connected to one leg of a bell crank lever 75. the other leg of this lever being preferably forked and engaging in. a circumferential groove 76 in the clutch pinion. Upon the steering wheel being shoved forward the bell crank ever will shift the The steering" mechanism is driven by power through the clutch into engagement with the lower clutch 65, and upon the steering wheel being pulled rearwardly the bell crank lever will shift the clutch into engagement with the upper clutch gear 65. In the normal position of thehand wheel the steering shaft 72 extends vertically and the clutch is in neutral or off position whereby the power drive of the turn table is inactive and the turn table may now be turned man-- ually. However when the power drive is thrown on it is necessary that the hand wheel ll be released so that it will not be turned in the hands of the operator. lhis is accomplished by means of spring rods 77 which are attached tothe main frame and extend up along the shaft 72 and are loosely secured in front and rear perforated lugs carried by sleeve 78. When the steering wheel drawn back the forward rod will pull down the sleeve 78 and when steering wheel is pushed forward the rear rod will pull down the sleeve 78. When. the sleeve pulled down, it also pulls down an inner sleeve 79 which loosely fits the steering shaft??? and has an abutment col lar 80 at the bottom upon which the outer sleeve is supported. The inner sleeve is provided in the top with serrations which normally engage with corresponding serrations in the hub ill of the steering wheel. 'lhe inner sleeve is normally held up and engaged with the steering wheelby means of a helical spring seated on the steering shaft and hearing against an abutment collar 82 thereon. l low when the inner sleeve 79 pulled down it releases the steering w? eel 71 which is then free to turn on the st ring shaft 72. This allows the steering aft to turn while the hand wheel is held ry by the operator. it will. be under .hat "the steering shaft and above 1 ad connections therefor may be housed in a casing if desired with out sacrificing any of the advantages of the invention. This casing may be fitted with the usual ensine controls for the motor (not shown). ear the steering wheel is arranged a driveifs seat 83, which may be fitted as desired with gasolene tank, tool box or such other attachments as would seem best. A

()n the inner face of the turn table rim are disposed opposite cams 83 and 83 for the purpose of automatically preventing too great swinging of the truck by throwing off the'clutch when the truck wheels have swung through an arc of ninety degrees in either direction. ll hen the cam 83, which has a sloping cam surface, comes around to the lever 75. forces the lever up and releases the clutch. Likewise, when the cam 83", comes around to the lever 75, it forces the lever down and releases the clutch. These cams however do not prevent the truck from 3, eachcomprise two bars 84, see Fig. .8,-

which are attached to either side of the frame bar and are hinged to an angular casting 85 by means of a pivot pin 86, the casting having an integral ring bearing 87 which loosely surrounds the axle and allows of the axle turning therein when the plat-form hereinafter described is being shifted. The casting has an opening formed in rear of the pivot pin in which opening a vertically disposed pin 88 loosely projects, the pin being rigidly secured at the base in any preferred manner to the bars 84.. A cushion spring 89 is seated on the pin between the casting and bars 8 1 and absorbs all shocks and 'jars during rocking of the main frame on the pivot 86 upon passage of the machine over unevenground. v

The platform B, elevator C and reel D of the header attachment will now be described, and during such description refer-. ence will be made more especially to Figs. ,1, 2 and 7 wherein the parts are bestilluszontal bar 92 which is swung from the aXle 3 by means of an upper horizontal bar 93,

.' the lower bar 92 being curved upwardly at the rear end and there hinged to the rear end of the upper bar 93 by means of a pivot pin 94. An adjusting pin 95 is, passed loosely through a suitable eye 96 on the forward end of the upper bar and is pivotally connected at the lower end to the lower bar by means of a pivot pin 97 there being an adjusting nut 98 threaded onto the pin above the eye 96 by means of which the ing 103 which casting is secured by the same bolt 100 as the casting 99, both these castings being disposed directly opposite each other. The arm 102"is attached to the upper bar 93 by means of abrace 104.- so that the weight may be carried with no undue strain on the castings and axle. The platform B is further supported bythc arm 118 secured to an outer end of the axle 3 and the adjacent end portion'of the platform B, as is thought to be particularly shown in Fig. 1.

A means for tilting the platform is shown in Fig. 21, in which 105 designates a lever which is rigidly secured to the axle 3 by means of opposite castings 106 and 107 that are anchored in position by means of a common. bolt 108. A link 109 connects this lever with an operating lever 110 that is equipped with the usual rack and pawl 111 for locking the lever in adjusted position. As will be apparent, manipulation of the operating lever serves to rock the axle and thus raise or lower the platform and parts carried thereby to accommodate the machine to dif- 112 is attached near the lower end to an eX- tremity of the axle 3 by means of a bolt 113 and extendsup in the arc of an ellipse over and is fixed to the top of an upright brace 114 which is attached at the lower end to the elevator C, the bar 112 thus serving to support and carry the weight of the elevator. Thebar 112 also serves as an adjustable support for the reel D the latter being carried at the inner end on a horizontal bar 115which is pivotally attached to the brace 1141 by means of a pivot bolt 116 and is adjustably secured at the rear end to the bar 112 by means of a pin 117 selec'- tively passed through an opening of a series of openings in the said bar 112. The bar 112 'extends downwardly'in rear of the axle 3 to a point in alinement with the hinge con nection between the elevator, and platform parent that the platform B, elevator C, andreel D, are all fixed to the .axle 3 and the weight of all the parts supported by the two large coil springs 101 connected to the main frame in rear of the axle, and further that upon rocking of the axle through the instrumentality of the operating lever 110, the above named members of the header will be raised or. lowered to accommodate the machine to various heights of grain.

The operation of the cutter will. now be described. The cutter is driven by a direct drive from the differential gear whereby the cutter is continuously actuated regardless of the direction in which the machine is Il'lOVv ing, and thus skipping of the grain is pre vented. The driving shaft 119 extends from the differential gear where is equipped with a pinion 120 driven by the latter, forwardly under and below th axle where it is jointed and fitted with a knuckle 121.

invaeo'a i a From theknuckle it extends to the transmission gear at the rear of the platform B where it is attached by means of a suitable bearing 122 to the platform. The driving shaft is squared at the forward end and fits in a cast sleeve 123 which has a knuckle 124 to allow for any change of angle caused by raising or lowering of the platform. This knuckle is attached to a stub shaft 125 to which is attached a pinion 126. The pinion 126 drives a pinion 12'? attached to a shaft 128 which extends along the rear edge of the platform to the extreme left end of the latter Where gearing is attached by means of "which the rollers of the-elevator,

and the reel are driven.

To the shaft 128 are attached small bevel pinions 129 and 130 which drive bevel gears 131 and 132 attached to the ends of respective roller shafts of the elevator. The gear 132 is formed with an integral spur gear 133 for driving the upper roller of the ele vator,'as best shown in Fig. 13. The gear 133 drives, an idler 134 to which is attached a sprocket chain135 that drives the up er roller of the elevator. The above descrih ed gearing is inclosed in a suitable casing 136 which is rigidly fastened to the back of the platform. The sickle bar 137 is driven by means of a pitman 138 from one of the 'elevator rollers as shown.

In Fig. 7 is shown the elevator roller and reel driving mechanism. I The reel as shown is driven from the driving gear 131 of one of the elevator rollers. The gear 131 drives a pinion 139 carried by a stand shaft 140 which is equipped with a knuckle 141 to allow for any change of direction which it may be necessary to give the upper end of the shaft. The shaft is fitted with a pinion 142 which drives a gear 143 that drives the reel. This gear 143 with its supports is best shown in Fig. 22 wherein it will be seen that the gear is mounted on a stub shaft 144 which is supported by a plate casting 145 that is secured as shown at 146 to the above mentioned upright brace 114 and also secured to the reel supporting rod 115 by a bolt 147 working in a slot 148, to allow for shifting of the reel.

From the gear 143 the shaft 144 extends forward along the reel supporting rod 115 and is equipped near the end. with a pinion 149 which drives a gear 150 on the end of the reel shaft. The shaft 144 is broken at its passage across the reel supporting rod 114 and there fitted with a knuckle 151 so that in shifting the reel up or down the shaft will always be in line. The outer or fen ward end of the shaft 144 is squared and passes through the pinion 149 that drives the reel. The pinion 149 has an extension or hub 152 which passes through a boxing 153 and is shouldered at the end as shown at 154. Likewise, there is. a sleeve 155 on the In constructing the platform, the back rib is formed of channel iron as best shown in Fig. 14, while the front rib 161 is formed of 2 bar as best shown in Fig. 15.

The boxing for the outer roller 162 of the canvas apron of the platform iscarried by the front rib as shown in Fig. 1. The sickle bar guards 163 are attached to the front rib as is also the guard strip 164 which holds the canvas down. The sickle (not shown) recipro'cates upon this plate through the guard in the usual manner. Disposed on the inner faces of the front and rear ribs of the platform are U-bolts 165 and 166 which separate the upper lap from the lower lap of the canvas apron (not shown).

Since it is necessary that the header mechanism be thrown out of gearwhile transporting the machine from place to place under its own power, a cone clutch 167 is operatively connected to the header driving shaft 119 and is controlled by shift lever 168.

The general shape and construction of 1 The motor is placed at about the center of the frame at the place indicated and is operatively connected in any suitable manner to the diffferential gear 28.

What is claimed, is Y A machine of the character described comprising, in combination, a wheel supported axle, castings disposed rearwardly relative to the axle and provided with annular menibers through which said axle is loosely directed, a frame having side bars pivotally engaged with the castings in close proximity to the annular members, the rear portion of each of the castings being provided with a vertically disposed opening, a pin carried by each of the side bars and loosely disposed through the opening of the casting, a cushioning spring surrounding the pin and interposed between the casting and the bar, a forwardly directed bar secured to the undere surface of the axle and extending beyond opposite sides thereof, an upstanding arm supported by the axle in advance thereof, a coil springoperatively engaged with the upper extremity of the arm and the In iestimony whereof we hereunte affix our sigilatures in the presence of two .Witmesses.

CHAUNCEY F. DAVIS. EARL G. DAVIS. Y Witnesses:

J R. DAVIS, H. A. DAVIS, 

